Home / 20,332.73-30,499.14-13,318.62

Finding the Fourth Proportional to 20,332.73, 30,499.14 and 13,318.62

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Solution

The fourth proportional to 20,332.73, 30,499.14 and 13,318.62 is: 19,977.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.73 : 30,499.14 = 13,318.62 : x
  2. Step 2: Convert to fraction form
    20,332.73/30,499.14 = 13,318.62/x
  3. Step 3: Cross multiply
    20,332.73x = 30,499.14 × 13,318.62
  4. Step 4: Simplify right side
    20,332.73x = 406,206,455.99
  5. Step 5: Solve for x
    x = 406,206,455.99/20,332.73
  6. Step 6: Final answer
    x = 19,977.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.